Rom is not that bad. I was knocked out a few times, but had much better success when thought about the parameters of the fight. I got the right armor on, got the right gear to kill the spiders. Learned the pattern for watching Rom and where the arcane meteor spell will hit relative to your motion at the time he casts. Learned the call sign and distance for his AOE. Beat him pretty easily, then got him the first time in the Chalice much later.